This is the base harness that you use with all Cummins adapters. It has the ignition on/off switch and powers up the correct adapters.  It has the standard 9 pin diagnostic conector. Cable is fuse protected. Has a togle switch to simulate ignition switch.

You will need the correct adapter for the ECM you want to program and your diagnostic tool. I sell the adapters separate.

You can also use this to test an ECM by taking the truck wiring out of the picture.  Or for test stand operation.                                                                                                                                              

    Any questions please ask.   Thank

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This is the Cummins CM550 ECM adapter.    It has the ROM boot switch on it.   Used on the ISB and QSB engines.                                                

You can also use this to test an ECM by taking the truck wiring out of the picture.    

   Please see request form at bottom of this page or call me to order.                                                                                                                                     

    Any questions please ask.   Thanks

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This is the Cummins CM554 ECM adapter.    It has the ROM boot switch on it.   Used on the ISC and ISL engines.                                                

You can also use this to test an ECM by taking the truck wiring out of the picture.    

   Please see request form at bottom of this page or call me to order.                                                                                                                                     

    Any questions please ask.   Thanks

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This is the Cummins CM800 ECM adapter.       Used on the ISB e

ISB four-cylinder engine.                                                

You can also use this to test an ECM by taking the truck wiring out of the picture.  

   Please see request form at bottom of this page or call me to order.                                                                                                                                     

    Any questions please ask.   Thanks

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This is the Cummins CM2220 ECM adapter.                                                       

You can also use this to test an ECM by taking the truck wiring out of the picture.    

   Please see request form at bottom of this page or call me to order.                                                                                                                                     

    Any questions please ask.   Thanks

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